NOAA S-57 chart cell
Amukta Pass to Unalaska Island, AK
US4AK3FE
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 267
- S-57 layers
- 29
- Published
- Apr 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 53.40000° N
- South
- 53.10000° N
- West
- 169.20000° W
- East
- 168.60000° W
- Center
- 53.25000° N, 168.90000° W
- Bounds area
- 388 sq nm
- Feature density
- 0.6877 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.2
- Smallest layer
- 1
- Largest layer
- 60
- Area sq km
- 1,332
- Features per sq km
- 0.20051
- DEPCNT Depth contour 60
- DEPARE Depth area 48
- LNDARE Land area 36
- COALNE Coastline 30
- SBDARE Seabed area 25
- UWTROC Underwater rock 17
- SLOTOP 8
- RIVERS River 6
- LNDRGN Land region 5
- LNDELV 3
- M_QUAL Data quality 3
- SEAARE Sea area 3
- WEDKLP 3
- ICEARE 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- TESARE 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4AK3FE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3FE/1.0/US4AK3FE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3FE/1.0/US4AK3FE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3FE/1.0/US4AK3FE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3FE/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 14, 2025 | metadata.json |